code: def test_2_get_columns(self):
      columns = self.handler.get_columns("test")
      self.assertEqual(columns, [])
  
file_path: mindsdb/mindsdb/integrations/handlers/rockset_handler/tests/test_rockset_handler.py
imports: import unittest
  from mindsdb.api.executor.data_types.response_type import RESPONSE_TYPE
  from mindsdb.integrations.handlers.rockset_handler.rockset_handler import RocksetHandler
label_desc: Use image node_id 4 for calling the RocksetHandlerTest obj's underlying member method code with example usage: obj.test_2_get_columns() without return types